{"id":22706,"date":"2021-07-04T15:17:57","date_gmt":"2021-07-04T13:17:57","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=22706"},"modified":"2021-07-04T15:17:57","modified_gmt":"2021-07-04T13:17:57","slug":"quest-ce-quun-dome-de-chaleur-appele-egalement-systeme-en-omega","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/quest-ce-quun-dome-de-chaleur-appele-egalement-systeme-en-omega\/","title":{"rendered":"Qu&rsquo;est ce qu&rsquo;un d\u00f4me de chaleur appel\u00e9 \u00e9galement syst\u00e8me en om\u00e9ga ?"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Dans la r\u00e9gion de Vancouver au Canada, des \u00e9coles ont \u00e9t\u00e9 ferm\u00e9es et les campagnes de vaccination contre le Covid-19 suspendues. Les climatiseurs et ventilateurs sont en rupture de stock.<br \/>\nUn thermom\u00e8tre qui fr\u00f4le les 50\u00b0C. Suffoquant sous des chaleurs si extr\u00eames qu&rsquo;elles paraissent irr\u00e9elles, les habitants de Vancouver sont contraints \u00e0 trouver refuge dans des \u00ab\u00a0centres de rafra\u00eechissement climatis\u00e9s\u00a0\u00bb de la m\u00e9tropole canadienne.<\/p>\n<p>\u00ab\u00a0On a d\u00e9j\u00e0 eu des canicules auparavant, mais jamais de ce niveau\u00a0\u00bb, souligne ce mercredi Lou, depuis un des 25 centres mis en place par la ville. \u00ab\u00a0Je suis choqu\u00e9e par le nombre de d\u00e9c\u00e8s qu&rsquo;il y a eu\u00a0\u00bb, soupire-t-elle. Des dizaines de personnes sont mortes subitement ces derniers jours dans la r\u00e9gion, une surmortalit\u00e9 attribu\u00e9e par les autorit\u00e9s aux temp\u00e9ratures \u00e9touffantes.<\/p>\n<figure id=\"attachment_22708\" aria-describedby=\"caption-attachment-22708\" style=\"width: 667px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22708\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quest-ce-quun-dome-de-chaleur-appele-egalement-systeme-en-omega\/dome-de-chaleur-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?fit=580%2C451&amp;ssl=1\" data-orig-size=\"580,451\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"dome de chaleur\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Le \u00ab\u00a0d\u00f4me de chaleur\u00a0\u00bb \u00a9 Gal ROMA \u00a9 2019 AFP&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?fit=580%2C451&amp;ssl=1\" class=\" wp-image-22708\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?resize=667%2C519&#038;ssl=1\" alt=\"\" width=\"667\" height=\"519\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?w=580&amp;ssl=1 580w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?resize=300%2C233&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur-1.jpg?resize=70%2C53&amp;ssl=1 70w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><figcaption id=\"caption-attachment-22708\" class=\"wp-caption-text\">Le \u00ab\u00a0d\u00f4me de chaleur\u00a0\u00bb \u00a9 Gal ROMA \u00a9 2019 AFP<\/figcaption><\/figure>\n<p>Le d\u00f4me de chaleur en cause<\/p>\n<p>Ce ph\u00e9nom\u00e8ne est li\u00e9 \u00e0 un anticyclone de blocage, vaste et tr\u00e8s puissant, qui persiste \u00e0 un m\u00eame endroit, provoquant la stagnation des masses d\u2019air. Cette zone de haute pression favorise \u00e9galement la subsidence, c\u2019est-\u00e0-dire la descente de l\u2019air, qui, sous l\u2019effet de la compression, r\u00e9chauffe l\u2019atmosph\u00e8re. Le ph\u00e9nom\u00e8ne est amplifi\u00e9 par la s\u00e9cheresse, importante dans le nord-ouest du continent am\u00e9ricain, et un fort ensoleillement. A mesure que la chaleur pi\u00e9g\u00e9e continue de se r\u00e9chauffer, le syst\u00e8me agit comme un couvercle sur une casserole, ce qui lui vaut le nom de d\u00f4me de chaleur. \u00ab C\u2019est une image, mais pas un terme r\u00e9pertori\u00e9 dans le jargon m\u00e9t\u00e9orologique \u00bb, pr\u00e9cise le climatologue Robert Vautard, directeur de l\u2019Institut Pierre-Simon-Laplace.<\/p>\n<p>Cette zone emp\u00eache la circulation des masses d\u2019air de se produire d\u2019ouest en est, et d\u00e9vie vers le nord le jet-stream, ces vents forts situ\u00e9s en altitude et qui tournent autour de la Terre. En contournant le d\u00f4me, les masses d\u2019air plus fra\u00eeches forment une circulation en omega, de la forme de la lettre grecque.<\/p>\n<figure id=\"attachment_22707\" aria-describedby=\"caption-attachment-22707\" style=\"width: 1600px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22707\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quest-ce-quun-dome-de-chaleur-appele-egalement-systeme-en-omega\/dome-de-chaleur\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?fit=1600%2C1143&amp;ssl=1\" data-orig-size=\"1600,1143\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"dome de chaleur\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?fit=800%2C572&amp;ssl=1\" class=\"wp-image-22707 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?resize=1600%2C1143&#038;ssl=1\" alt=\"\" width=\"1600\" height=\"1143\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?w=1600&amp;ssl=1 1600w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?resize=300%2C214&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?resize=800%2C572&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?resize=768%2C549&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/dome-de-chaleur.jpg?resize=1536%2C1097&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-22707\" class=\"wp-caption-text\">Infographie Visactu<\/figcaption><\/figure>\n<p>Comme dans une casserole avec un couvercle, l&rsquo;air pi\u00e9g\u00e9 se r\u00e9chauffe. Un tel ph\u00e9nom\u00e8ne est classique dans la r\u00e9gion \u00e0 cette saison. Mais avec de telles temp\u00e9ratures, c&rsquo;est in\u00e9dit. En rouge les temp\u00e9ratures de cette vague de chaleur \u00e0 Lytton. On voit qu&rsquo;elles ont compl\u00e8tement d\u00e9croch\u00e9 par rapport \u00e0 la moyenne.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Stunning breakout far above all previously measured values to set a new national temperature record for Canada of 49.6 \u00b0C (121 \u00b0F). <\/p>\n<p>This heatwave has reached further above historical means than any other summer heatwave previously recorded anywhere in North America. <a href=\"https:\/\/t.co\/aNURI7W8Yh\">pic.twitter.com\/aNURI7W8Yh<\/a><\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>&mdash; Dr. Robert Rohde (@RARohde) <a href=\"https:\/\/twitter.com\/RARohde\/status\/1410157638109872134?ref_src=twsrc%5Etfw\">June 30, 2021<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Selon les experts, ce d\u00f4me de chaleur n&rsquo;est pas provoqu\u00e9 par le changement climatique. Mais ce dernier rend le ph\u00e9nom\u00e8ne plus intense.<\/p>\n<p>\u00ab\u00a0Le climat agit comme des st\u00e9ro\u00efdes sur la m\u00e9t\u00e9o.\u00a0\u00bb Un sportif qui en prend aura toujours des bons et des mauvais jours, \u00ab\u00a0mais en moyenne, ses performances seront en hausse\u00a0\u00bb. De m\u00eame, le r\u00e9chauffement climatique \u00ab\u00a0rend plus probables ce genre d\u2019\u00e9v\u00e9nements extr\u00eames\u00a0\u00bb, explique Zeke Hausfather, climatologue au Breakthrough Institute.<\/p>\n<p>Difficile de pr\u00e9dire \u00e0 quelle fr\u00e9quence de telles vagues de chaleur pourraient se reproduire.<\/p>\n<p>La chaleur se dirige vers l\u2019est du Canada ?<\/p>\n<p>Ce d\u00f4me de chaleur a lentement migr\u00e9 vers les Prairies canadiennes au cours de la semaine, g\u00e9n\u00e9rant sur son passage de la chaleur intense et quelques records, sans pour autant donner un r\u00e9pit imm\u00e9diat \u00e0 la Colombie-Britannique ou \u00e0 l\u2019Alberta. Le Qu\u00e9bec, dans la mire du d\u00f4me\u2009? Continuant sur cette lanc\u00e9e, cette circulation en provenance de l\u2019ouest, connue sous le nom de flux zonal, occasionnera une br\u00e8ve pouss\u00e9e de chaleur dans la province au d\u00e9but de la semaine prochaine. Cette pouss\u00e9e chaleureuse sera intense, mais br\u00e8ve. En fait, celle-ci sera frein\u00e9e par un creux associ\u00e9 au vortex polaire situ\u00e9 au nord du Canada.Le mercure reviendrait donc vers des eaux plus saisonni\u00e8res vers le milieu de la semaine prochaine. On peut donc dire que le Qu\u00e9bec s\u2019en tirera \u00e0 bon compte comparativement \u00e0 l\u2019Ouest canadien.<\/p>\n<p>Ce ph\u00e9nom\u00e8ne pourrait-il se produire en France ?<\/p>\n<p>Le dernier record de chaleur remonte au 28 juin 2019 : la temp\u00e9rature \u00e9tait mont\u00e9e \u00e0 45,9\u00b0C dans le village de V\u00e9rargues (H\u00e9rault), d\u00e9passant le pr\u00e9c\u00e9dent record de la canicule de 2003 (44,1\u00b0C dans le Gard). Le mercure pourrait-il atteindre la barre symbolique des 50\u00b0C sur le territoire ? Pour Fabio d&rsquo;Andrea, chercheur du CNRS au Laboratoire de m\u00e9t\u00e9orologie dynamique, cela ne fait gu\u00e8re de doute.<\/p>\n<p>sources : <a href=\"https:\/\/www.bfmtv.com\/environnement\/climat\/dome-de-chaleur-les-habitants-de-vancouver-se-ruent-vers-des-centres-climatises_AD-202107010015.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.bfmtv.com\/<\/a> \/ <a href=\"https:\/\/www.lemonde.fr\/international\/article\/2021\/07\/01\/qu-est-ce-que-le-dome-de-chaleur-qui-etouffe-le-nord-ouest-du-continent-americain_6086588_3210.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.lemonde.fr\/<\/a> \/ <a href=\"https:\/\/www.lefigaro.fr\/sciences\/dome-de-chaleur-la-france-pourrait-elle-connaitre-des-pics-de-temperature-a-500c-20210702\" target=\"_blank\" rel=\"noopener\">https:\/\/www.lefigaro.fr\/<\/a> \/ <a href=\"https:\/\/www.leprogres.fr\/environnement\/2021\/07\/02\/qu-est-ce-que-le-dome-de-chaleur-qui-fait-suffoquer-l-amerique-du-nord\" target=\"_blank\" rel=\"noopener\">https:\/\/www.leprogres.fr\/<\/a> \/ <a href=\"https:\/\/www.meteomedia.com\/ca\/nouvelles\/article\/quebec-prochaine-victime-du-dome-de-chaleur\" target=\"_blank\" rel=\"noopener\">https:\/\/www.meteomedia.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"22706\">(495)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Dans la r\u00e9gion de Vancouver au Canada, des \u00e9coles ont \u00e9t\u00e9 ferm\u00e9es et les campagnes de vaccination contre le Covid-19&#8230;<\/p>\n","protected":false},"author":1,"featured_media":22709,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Qu'est ce qu'un #d\u00f4me de #chaleur appel\u00e9 \u00e9galement syst\u00e8me en #om\u00e9ga ? @laterredufutur.com Terra Projects","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[21,32],"tags":[4851,252,1289,166,631,7662,1204,4523],"class_list":["post-22706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenement-brutal","category-meteorologie","tag-anti-cyclone","tag-atmosphere","tag-canada","tag-canicule","tag-circulation","tag-dome-de-chaleur","tag-jet-stream","tag-omega","wpcat-21-id","wpcat-32-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/jet-stream-dome-de-chaleur-systeme-omega.jpg?fit=1000%2C481&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5Ue","jetpack-related-posts":[{"id":22678,"url":"https:\/\/www.laterredufutur.com\/accueil\/canicule-et-records-de-chaleurs-dans-louest-de-lamerique-du-nord\/","url_meta":{"origin":22706,"position":0},"title":"Canicule et records de chaleurs dans l&rsquo;ouest de l&rsquo;Am\u00e9rique du Nord","author":"Admin","date":"28 juin 2021","format":false,"excerpt":"46,6 \u00b0C : le Canada enregistre sa temp\u00e9rature la plus \u00e9lev\u00e9e jamais enregistr\u00e9e alors que l'ouest du pays et le nord-ouest du Pacifique am\u00e9ricain affrontent une vague de chaleur battant un record vieux de 84 ans. Lytton, qui se trouve \u00e0 environ 250 km au nord-est de Vancouver, a d\u00e9pass\u00e9\u2026","rel":"","context":"Dans &quot;Ev\u00e8nement Brutal&quot;","block_context":{"text":"Ev\u00e8nement Brutal","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/evenement-brutal\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/canada-canicule-juin2021.jpg?fit=696%2C696&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/canada-canicule-juin2021.jpg?fit=696%2C696&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/canada-canicule-juin2021.jpg?fit=696%2C696&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":7539,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-jet-stream-forme-la-lettre-omega-sur-la-france\/","url_meta":{"origin":22706,"position":1},"title":"Le jet stream forme la lettre omega sur la France","author":"Admin","date":"1 juillet 2015","format":false,"excerpt":"Voici une vue satellite du \"bloc om\u00e9ga\" sur l'Europe de l'ouest, qui est \u00e0 l'origine de l'importante vague de chaleur. Une forte cr\u00eate s'est\u00a0form\u00e9e sur l'ouest de l'Europe, le jet stream se d\u00e9marque par une remont\u00e9e spectaculaire sur l'ouest de la France et redescendant sur l'est de la France. Cr\u00e9ant\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/jet-stream-juin2015.jpg?fit=1200%2C841&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/jet-stream-juin2015.jpg?fit=1200%2C841&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/jet-stream-juin2015.jpg?fit=1200%2C841&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/jet-stream-juin2015.jpg?fit=1200%2C841&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/jet-stream-juin2015.jpg?fit=1200%2C841&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":27811,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-gigantesque-dome-de-chaleur-historique-recouvre-lensemble-des-etats-unis\/","url_meta":{"origin":22706,"position":2},"title":"Un gigantesque \u00ab d\u00f4me de chaleur \u00bb historique recouvre l&rsquo;ensemble des \u00c9tats-Unis","author":"Admin","date":"24 mars 2026","format":false,"excerpt":"Apr\u00e8s avoir battu des records de chaleur en mars dans 14 \u00c9tats et dans l'ensemble des \u00c9tats-Unis, le gigantesque d\u00f4me de chaleur qui a cuit le Sud-Ouest se d\u00e9place vers l'est et pourrait finir par \u00eatre l'une des vagues de chaleur les plus \u00e9tendues de l'histoire am\u00e9ricaine, ont d\u00e9clar\u00e9 des\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/03\/chaleurs-dome-usa-mars-2026.jpg?fit=1083%2C766&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/03\/chaleurs-dome-usa-mars-2026.jpg?fit=1083%2C766&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/03\/chaleurs-dome-usa-mars-2026.jpg?fit=1083%2C766&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/03\/chaleurs-dome-usa-mars-2026.jpg?fit=1083%2C766&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/03\/chaleurs-dome-usa-mars-2026.jpg?fit=1083%2C766&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":17112,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-faille-de-cascadia-de-vancouver-touchee-par-trois-seismes-de-magnitude-superieure-a-6\/","url_meta":{"origin":22706,"position":3},"title":"La faille de Cascadia de Vancouver touch\u00e9e par trois s\u00e9ismes de magnitude sup\u00e9rieure \u00e0 6","author":"Admin","date":"22 octobre 2018","format":false,"excerpt":"Trois s\u00e9ismes de magnitude 6,6 et 6,8 et 6,5 sur l'\u00e9chelle de Richter ont touch\u00e9 la r\u00e9gion de Vancouver sur la c\u00f4te Pacifique du Canada en moins d'une heure. Le premier tremblement de terre s'est d\u00e9roul\u00e9 \u00e0 432 kilom\u00e8tres au nord-ouest de la ville selon l'agence am\u00e9ricaine de surveillance de\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/10\/quake-seisme-vancouver.jpg?fit=780%2C439&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/10\/quake-seisme-vancouver.jpg?fit=780%2C439&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/10\/quake-seisme-vancouver.jpg?fit=780%2C439&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/10\/quake-seisme-vancouver.jpg?fit=780%2C439&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25052,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-jet-stream-actuel-est-deboussole\/","url_meta":{"origin":22706,"position":4},"title":"Le Jet stream actuel est \u00ab\u00a0d\u00e9boussol\u00e9\u00a0\u00bb","author":"Admin","date":"29 juin 2023","format":false,"excerpt":"Le jet-stream, ou courant-jet, fait le tour de l\u2019h\u00e9misph\u00e8re Nord, tourbillonnant jusqu\u2019\u00e0 15 km au-dessus de nos t\u00eates, comme une couronne pos\u00e9e sur la plan\u00e8te. S\u00e9parant l\u2019air froid de l\u2019Arctique, de l\u2019air plus chaud du Sud, il est l\u2019un des piliers du climat mondial. Pour les climatologues qui l\u2019observent sans\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/06\/jet-stream-juin-2023.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/06\/jet-stream-juin-2023.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/06\/jet-stream-juin-2023.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/06\/jet-stream-juin-2023.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7203,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-plan-canicule-declenche-vendredi-au-moins-pour-48-heures\/","url_meta":{"origin":22706,"position":5},"title":"Le plan canicule d\u00e9clench\u00e9 vendredi \u00abau moins pour 48 heures\u00bb","author":"Admin","date":"4 juin 2015","format":false,"excerpt":"A chaleur exceptionnelle, mesures exceptionnelles. Le plan canicule va \u00eatre d\u00e9clench\u00e9 vendredi \u00abau moins pour 48 heures\u00bb, en raison de la vague de chaleur annonc\u00e9e en France dans les prochains jours, a annonc\u00e9 la Secr\u00e9taire d'\u00c9tat charg\u00e9e de la Famille, des Personnes \u00e2g\u00e9es et de l'Autonomie, Laurence Rossignol, ce jeudi,\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/canicule.jpg?fit=800%2C480&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/canicule.jpg?fit=800%2C480&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/canicule.jpg?fit=800%2C480&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/canicule.jpg?fit=800%2C480&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=22706"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22706\/revisions"}],"predecessor-version":[{"id":22710,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22706\/revisions\/22710"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/22709"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=22706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=22706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=22706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}